Police have confirmed a female passenger from one of the vehicles involved in a collision this morning has died.
Emergency services were called to the scene between Wrangle and Holland Lane End at 10.22am following a collision between two vehicles that left one in a ditch and the other on its roof.
The driver of that car, a 72 year-old man from Tattershall, is currently being treated in hospital.
A couple in their 60s, from Leicestershire who were in the other vehicle are also being treated in hospital.
None of their injuries are thought to be serious.
The road will remain closed for some time.
Any witnesses, who have not already spoken with police, should call the Collision Witness Hotline on 01522 558855.